Can anyone tell me what the max card size is for the N3DS internally? Also, CIA's are installed to the INTERNAL MicroSD, correct? I have a N3ds on 9.0 and a 64GB MicroSD card. Since everything now is in CIA format, I'd like to go that route instead of using the Gateway to put the 3DS roms on. When I put the 64GB MicroSD card in the Internal slot, I am told a MicroSD card cannot be found. I'm thinking I need to format it in FAT32 to get the N3DS to see it, and Windows 10 isn't giving me an option to do so, so I'll have to do some Googling.